Machine for hulling peas, beans, and the like.



R. P. SCOTT.

, BEANS, AND THE LIKE APPLICATION FILED MAY 14, 1913,

MACHINE FOR HULLING PEAS Patented Sept. 2, 191.3.

2 SHBETS-SHEET 1 R. P. SCOTT..

=MAGHINE FOR HULLING PEAS, BEANS, AND THE LIKE.

APPLICATION FILED MAY 14, 19 13.

Patented Sept.2,1913.

2 SHEETS-SHEETZ,

35 form of finger heater, and Fig. is a more UNITED STATES ATENT OFFICE.

ROBERT P. SCOTT, 0F GAD IZ, OHIO.

MACHINE FOR HULLING PEAS, BEANS, AND THE LIKE.

Specification of Letters Patent. PatentedSPtjZ; 19] R Application filed May 14, 1913'. Serial No. 767,556.

Like, of which the f lowing is a specification.

My invention relates to machines for hulling cow peas, Lima beans and certain varieties of green peas from the vines, and is an improvement on the impact type of machine such as is indicated in my former Patents K01 199397 of J uue 13, 1893, to It. P. Scott, No. 957,442, May 10, 1910, to R. P. Scott, No. 957,443, May 10, ]9l0, to R. P. Scott, No. 500,299, June 27, 1893, to Scott and Chisholm and my co-pending application, Serial No. 759,387 of April 4, 1913.

-The object of my invention is to improve on machines already in use-and particularly to make one machine applicable to cow peas and Lima beans and also to the more resistant varieties of green peas. 7 My invention consists in the application of a special beat-er and in combining therewith sifting and fanning elements all 'working together for the purpose indicated hereinafter.

In the drawings: Figure 1 is a front elevation of the machine with parts broken away, Fig. 2, is a vertical transverse sect-ion. Fig. '3 is a perspective view ofthe finger beater mounted so as to have a springy action. Fig. 4 .is a view of another or less diagrammatic view llllustrating the action of the fingers in hulllingcow peas, oramore resistant varieties 'f peas.

While machines using the? have been in use for the past-twenty years, mostly on green peas for callning purposes, of late Lima beans have come more in demand and there has been little success in hulling cow peas, which latter are avariety of the bean family. A

In operating on cow peas, fanning facilities are much needed and a much more drastic style of beater is preferred. This is also true of Lima beans. 1

Referring now to the drawing, Fig. 1 shows the elevation of my hullcr which in general form resembles the impact machines shown in my former patents and applications with additional features as hereinafterdescribed.

impact process outer elevating cylinder 1 with longii tudinal lifting ribs 10 is provided in which is mounted an inner beater-carrying drum 2 with radial heaters 6. One or more of said heaters is provided with teeth '12. The

power from the engine is generally applied to the central shaft of the drum 2 and'a counter shaft 4 is connected by a belt or sprocket chain 40 to the, shaft of the drum 2. This counter shaft in turn drives the outer cylinder 1 by meausof belts 4:00 and also drives the apron by suitable connections not shown. The. blower 11. may be driven directly from the inner beater shaft'by means of a belt 500, or the blower mayfbe run independently from an engine used to drive the machine. The blower 11 forces air through the pipes 9, one-or more of such pipes being arranged above the apron 3 and being provided with holes or. slots from which currentsof air are directed upwardly and substantially parallel to the surface of -the separating apron 3.

.In order to transport the machine from place to place, it is mounted upon a truck provided with wheels 8. This avoids the disadvantage of stationary pea hullers which could not be moved, except by tearing them down. v In the machine illustrated in the dra wmgs, a driving engine may be used, which is separate from the huller, or which may be placed upon a suitable truck with a driving connection to the truck wheels so as to carry the entire apparatus from place to place. The engine may boot the automobiletype and useful for other purposes.

It is not my intention to do away with the impact process in hulling peas, but to much my object to tear the vines apart as .it is to strike the pea pods by a blow calculated to break the pods in two, as shown in Fig. 5. y

' In some varieties of peas where. the pods are very closely filled, very little air is found inside. When it is possible to do the hulling purely by impact against a flat i1nbroken surface, the action is less harsh on the peas. But in some varieties and particularly with Lima beans, a breaking action is necessary. I therefore do not generally use my finger heaters throughout the entire hulling machine, but'makeuse of a plain, flat impact beater at the start, and

my finger beater at the tail or discharge end.

-. In the present'application, I have shown a spring beater, which broadly considered spring beater if it is provided with fingers.

It will be understood, however, that the finger beater may be used without the 'springy action, if desired.

Fig. 5 shows the action of the fingers 12 in hulling and breaking the pod of the more resistant variety of peas, hulled by the machine.

Instead of making the fingers of cast metal or as indicated in Fig. 3, the construction shown in Fig. 4 may be used. In this figure a corrugated face takes the place of the fin ers. The corrugation may be made by ben ing up the sheet of metal 600, which isl'then fastened by means of bolts 601 to the support 602, which support is bolted to the drum, -The corrugations may also be grooved out of wood or metal. The fingers may also be made longer and of flexible material such as steel wire in which case there would be a certain amount of'spring in the fin er itself.

n the form of the invention shown in Fig. 3 which is the same as that shown in Fig. 1, the fingers are cast upon a plate l20, which is adjustably secured by means of bolts 121 and slots 122, upon the sheet metal angular support 123. The sheet metal is springy so that the fingers 12 give a yielding blow. The sheet metal piece 123. is secured to the drum 2 by means of-bolts 124 and slots 125, so that the angle of the heaters with respect to the drum 2 may be adjustably varied. By means of the bolts 121, the radial length of the heaters may be varied.

The outer cylinder 1 is constructed as shown in my co-pcnding application, with perforated rubber screen 126 and carries the lifting ribs 10 provided with guards 100.

and with passages .101- between the ribs and the perforated rubber. so that such of the hulled peas as pass between the guard 100 and the rubber run through the passage 101 Ontq, the adjacent face of the cylinder. The

outer cylinder is provided at the discharge end with a coarser wire screen 127 tor sift ing the peas 0r beans that remain over in the exit end of the machine.

My machine is useful as a pea huller for hulling peas of the more resisting varieties and for hulling Lima beans and cow peas and may readily be converted into a machine for hulling tender-green peas by removing the finger beaters and substituting suitable plain faced heaters therefor, and adjusting them to the desired angle. By such a substitution it is also possible to change the ma chine from one that is used in hulling beans of one kind to a machine for hulling beans of another kind, or of a diiferent condition diiring the season.

The apron 3 as usual is provided with the three cornered roller 3( and the four-cornored roller 31 to give the desired shape to the upper portion so that the upper portion moves upwardly, namely, toward the left as indicated by the arrow in Fig. 2, carrying with it the shred of the vines, pods, etc., the peas rolling downwardly into the box 32. This action of separating the peas from the shreds is from the upwardly.

Having thus described the construct-ion of my machine, its operation will be clear. The beans or cow eas, etc., are fed into the machine atthe le hand end of Fig. 1 and pass through the machine, being slfted'in the process from the perforated rubber screens 126 and the coarser wire screen 127 at the exit end of the machine. The heaters with their fingers 12 open the ,pods and break them if resistant. The blasts of air coming from the pipes 9 prevent the shreds from the pods of cow peas from passing into the box with the hulled peas. I What I claim is:

1. In a vine hulling machine for hullin pipes 9, which blows the shreds ination of a revolving shaft, a heater provided witha series of fingers carried by the shaft and liftin ribs to elevate the peas, beans and the lie and drop them into the path of the beater. 1

2. In a vine hullin machine for hulling peas, beans and the like by impact, the combination of a shaft, a springy beater carried thereby, said beater being provided with a seriesof fingers and rotary lifting ribs for elevating beatcrs.

peas; beans and the like by impact the combination of a rotating cylinder havlxi a pen forated outer wall, means for hu-ling peas within said cylinder and means for directing blast of air beneath said cylinder acre s the path of the shreds sons to divert the sfhreds descending through said cylinder.

4. In a vine hulling machine for hulling peas, beans and the like, the combination of a drum carrying one or more springy beatof the apron. It is driven greatly facilitated by the blast of air coming 3. In a vine hulling machine for hulling.

g eas, beans and the like by impact, the comthe peas, beans and the like and discharging them into the path of the nism for raising the vines and dropping ers, one or more of said oeecersbeing provided with radially projecting fingers, a cylinder covered with perforated material for sifting theljulled products,elevating mechathem into the path of the heaters and means for forcing a blast of air transversely of the path of the (i'escending shreds which pass through the perforated cylinder.

5. In a pen and been hnller, the combination of hulling, sifting and separating devices, consisting of a drum carryin a p1urality of springy heaters, each provic ed with radial fingers, a cylinder covered with perforated material elevatin ribs within the n 1 4 cylinder for elevating the produces and! dropping them into the path of the-heaters, a separating apron arranged benenth the cylinder and a. plurality of pipes extending across and above the said apron and provided with passages so as to project blasts of air upwardly and substantially parallel to the upper flap of the apron and across the path of the descending shreds.

In testimony whereof, I have signed my name to this specification, injahe presence of two subscribing witnesses.

ROBERT P. seer". Witnesses:

l nnnrnro Bin NZ, Lonnnns F. LITTLE. 

